Vendor psutils and remove neko

plugins/system/ps/load/load.go

@@ -0,0 +1,16 @@
+package load
+
+import (
+	"encoding/json"
+)
+
+type LoadAvgStat struct {
+	Load1  float64 `json:"load1"`
+	Load5  float64 `json:"load5"`
+	Load15 float64 `json:"load15"`
+}
+
+func (l LoadAvgStat) String() string {
+	s, _ := json.Marshal(l)
+	return string(s)
+}

plugins/system/ps/load/load_darwin.go

@@ -0,0 +1,37 @@
+// +build darwin
+
+package load
+
+import (
+	"strconv"
+
+	common "github.com/shirou/gopsutil/common"
+)
+
+func LoadAvg() (*LoadAvgStat, error) {
+	values, err := common.DoSysctrl("vm.loadavg")
+	if err != nil {
+		return nil, err
+	}
+
+	load1, err := strconv.ParseFloat(values[0], 64)
+	if err != nil {
+		return nil, err
+	}
+	load5, err := strconv.ParseFloat(values[1], 64)
+	if err != nil {
+		return nil, err
+	}
+	load15, err := strconv.ParseFloat(values[2], 64)
+	if err != nil {
+		return nil, err
+	}
+
+	ret := &LoadAvgStat{
+		Load1:  float64(load1),
+		Load5:  float64(load5),
+		Load15: float64(load15),
+	}
+
+	return ret, nil
+}

plugins/system/ps/load/load_freebsd.go

@@ -0,0 +1,37 @@
+// +build freebsd
+
+package load
+
+import (
+	"strconv"
+
+	common "github.com/shirou/gopsutil/common"
+)
+
+func LoadAvg() (*LoadAvgStat, error) {
+	values, err := common.DoSysctrl("vm.loadavg")
+	if err != nil {
+		return nil, err
+	}
+
+	load1, err := strconv.ParseFloat(values[0], 64)
+	if err != nil {
+		return nil, err
+	}
+	load5, err := strconv.ParseFloat(values[1], 64)
+	if err != nil {
+		return nil, err
+	}
+	load15, err := strconv.ParseFloat(values[2], 64)
+	if err != nil {
+		return nil, err
+	}
+
+	ret := &LoadAvgStat{
+		Load1:  float64(load1),
+		Load5:  float64(load5),
+		Load15: float64(load15),
+	}
+
+	return ret, nil
+}

plugins/system/ps/load/load_linux.go

@@ -0,0 +1,40 @@
+// +build linux
+
+package load
+
+import (
+	"io/ioutil"
+	"strconv"
+	"strings"
+)
+
+func LoadAvg() (*LoadAvgStat, error) {
+	filename := "/proc/loadavg"
+	line, err := ioutil.ReadFile(filename)
+	if err != nil {
+		return nil, err
+	}
+
+	values := strings.Fields(string(line))
+
+	load1, err := strconv.ParseFloat(values[0], 64)
+	if err != nil {
+		return nil, err
+	}
+	load5, err := strconv.ParseFloat(values[1], 64)
+	if err != nil {
+		return nil, err
+	}
+	load15, err := strconv.ParseFloat(values[2], 64)
+	if err != nil {
+		return nil, err
+	}
+
+	ret := &LoadAvgStat{
+		Load1:  load1,
+		Load5:  load5,
+		Load15: load15,
+	}
+
+	return ret, nil
+}

plugins/system/ps/load/load_test.go

@@ -0,0 +1,30 @@
+package load
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestLoad(t *testing.T) {
+	v, err := LoadAvg()
+	if err != nil {
+		t.Errorf("error %v", err)
+	}
+
+	empty := &LoadAvgStat{}
+	if v == empty {
+		t.Errorf("error load: %v", v)
+	}
+}
+
+func TestLoadAvgStat_String(t *testing.T) {
+	v := LoadAvgStat{
+		Load1:  10.1,
+		Load5:  20.1,
+		Load15: 30.1,
+	}
+	e := `{"load1":10.1,"load5":20.1,"load15":30.1}`
+	if e != fmt.Sprintf("%v", v) {
+		t.Errorf("LoadAvgStat string is invalid: %v", v)
+	}
+}

plugins/system/ps/load/load_windows.go

@@ -0,0 +1,13 @@
+// +build windows
+
+package load
+
+import (
+	common "github.com/shirou/gopsutil/common"
+)
+
+func LoadAvg() (*LoadAvgStat, error) {
+	ret := LoadAvgStat{}
+
+	return &ret, common.NotImplementedError
+}